PT-2023-9710 · Linux+3 · Linux Kernel+3
Syzbot
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Publicado
2023-10-02
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Atualizado
2025-02-03
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CVE-2023-52786
CVSS v3.1
4.7
Média
| Vetor | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a racy may inline data check in dio write, which can cause a denial of service. The problem occurs when the check for existing inline data and the state flag can span a lock cycle, allowing another writer to create inline data before the dio write task acquires the lock. The
ext4 dio write iter() function checks the current inline state of the inode and clears the MAY INLINE DATA state flag to either fall back to buffered writes or enforce that any other writers in progress on the inode are not allowed to create inline data.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
Race Condition
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Identificadores relacionados
Produtos afetados
Astra Linux
Linux Kernel
Red Os
Suse